Cultivator



A. HOLSEY.

CULTIVATOR.

APPucATloN FILED APn.2a.1917.

l ,3 l 9474, Patented Oct. 21, 1919.

hr Hpjqy, By 7% UNTTED sTATEs PATENT oEEIoE.

ARTHUR HOLSEY, OE CHICAGO, ILLINOIS, ASSIGNOR, BYMESNE ASSIGNMENTS, TO INTERNATIONAL HARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

oULTivnTon.

Speeication of Letters Patent.

Patented Oct. 21, 1919.

Application filed April 28, V1917. Serial No. 165,266.

To all whom t may concern:

Be it known that I, ARTHUR HoLsEr, a citizen of the United States, residing` at Chicago, in the county of Cook and Statate of Illinois, have invented certain new and useful Improvements in Cultivators, of which the Vfollowing' is a full, clear, and exact specification.

This invention relates to cultivators and more particularly to releasable locking means for influencing the tension exerted by a balancing spring for the cultivator beams.

The object of my invention is to apply and release the tension of a cultivator beam balancing spring to facilitate the adjust- .ment of parts connected therewith in an improved manner.

The object is accomplished by providing a releasable latch which forms part of the yieldable connection between the parts in question.

The invention is illustrated on the accompanying sheet of drawings, in which- Figure 1 is a fragmentary side view of a cultivator having my invention embodied therein;

Fig. 2 is a detail plan view of the releasing and locking latch connected to the balancing spring, the latch being in applied position;

Fig. 3 is another detail view of the'releasing and locking latch, thelatch being shown in applied position in full lines and in released position in dotted lines;

Fig. 4 isa sectional view of one ofthe beam supports taken along line 4-4 of Fig. 1; and

F ig. 5 is a sectional view taken along line 545 of Fig. 4.

The same reference numerals designate like parts throughout the several views.

This cultivator comprises an arch axle 1 having carrying wheels 2 (only one being shown), a tongue 3 connected to said'arch axle, and a yoke member 4 suspended from said tongue. Pivotally connected to the lower end of said yoke are beams 5 having any suitable cultivating shovels 6. Adjustably connected to the beams are handles 7 projecting upwardly to be within convenient reach of the suitably supported drivers seat 8. E

The yoke is provided with two oppositely and laterally extending spindle members' 10, which are integral therewith` (only one be ing shown). To each of these spindles is pivoted a sleeve member 11 having integral therewith adownwardly extending arm 12. The sleeve 11 is provided with a longitudinal slot 13 in a squared portion 14 thereof (Fig. 5), into which is inserted a bolt 15, the squared portion of said sleeve being spaced from the spindle to permit the bolt head 16 to reside between the spindle and the sleeve. A clamping member 17 is arranged upon the squared portion of said sleeve 1l, having a beveled surfaceengaging with a coperating beveled surface of a clamping member 18. `The clamping member 1S has integral therewith a curved bifurcated portion 19, within which is seated a vertically arranged member 20 having the forked. ends 21 of one of the cultivator beams pivoted thereto forv permitting lateral movement thereof. The member 20 is provided with a vertical slot 22 through which the bolt 15 passes and is clamped thereto by means of a nut 23. It can readily be seen that by means of this construction, including the slotted portion 13 in the sleeve 11 and the slotted portion 22 in the member 20, the beams may be adjusted either horizontally Vor vertically when the bolt and nut connection is loosened.

Connected to the spindle 10 and projecting upwardly'and rearwardly is a bar 24 bolted to a frame bracket 25 which has integral therewith a depending finger V26. This bar 24 forms a rigid connection between the spindle 10 and the arch axle 1.

A flexible and adjustable connection is provided between the spindle sleeve 11 and the depending finger 26.V This connection includes the downwardly extending arm 12 and a link 27 connected at its lower end to the arm 12 and at its upper end to the lower end of a spring 28. The upper end of this spring 28 is connected to one end of another link 29, the opposite end of this second link 29 being pivotally connected to a cross member 30 formed integrally with` the forked member V36 of the. finger latch, 31. This finger latch 31 also Ihas integral therewith studs 32, upon which is pivotally mounted the bifurcated portion of the U-shaped member 33. A bolt 34 passes through the members 33 and the depending iinger 26, the end of the bolt being threaded and having a nut 35 thereon which, when adjusted, 'varies the tension of the spring 28.

The balancing spring 28 when under tension has a tendenc to lift or balance the beams 5. The spring being under tension during its balancing action, it can'readily be seen that to adjust either the spring 28 by the nut 35Vor to make various adjustments, including the lateral adjustment of the beam in the Yhorizontal slot 13, would be diiiicult on account of the binding of parts,

including the bolt head 16 in the squared portion forming the walls 'of the horizontal slot 13. To adjust the nut 35 with the spring tightened also would have a tendency to strip the threads from the bolt 34.

Y This invention does away with all of these difiiculties by providingv the above mentioned releasing latch member for said spring, which also locks said spring in its balancing position. This Vlat-ch includes two parts, namely, the U-shaped member 33 and the finger latchV 31.

As'shown in full lines in Figs. 1 and 3, the spring-is under tension and the latch is in Vlocking position, in which position the beams are balanced. To release the spring, the latch 31 is pushed downwardly from its full line position shown in Fig. 3. When the pivotal connection 30 `falls below a line between'the point 32 and the point of connection of the'link 27 and the arm 12, thev spring draws the linger 31 into the dotted line position shown in Fig. 3, in which position the spring is completely released or unlocked. `The desired adjustments now may readily be made without any undesirable binding between the parts in question.

To again place the spring 28 in a position to counterbalance the weight of the beams, the latch finger 31 is merely drawn upwardly from its dotted line position shown in Fig. 3 to its fuillline position shown in Figs. 1 and 3.

VHaving shown and described one embodiment of' my invention, I do not desire that it be limited to the details of the structure' as illustrated, it 4being understood that many changes may be made in the form, proportion and organization of its associated parts without departing from the spirit ofmy invention as indicated in the scope of the appended claims. Y YVi7hat I claim as new by Letters Patent is: Y

`1L In a cultivator, the combination of a wheel Vcarried arch axle, a supportedcultiand desire to secure vator beam, a resilient connection between alinement therewith to release the same, and means for adjusting the tension of the spring. Y

2. In a cultivator, the combination of a wheel carried arch axle, a supported cultivator. beam, a. resilient connection between said arch axle and said beam, and means forming part of said resilient connection and in alinement therewith to adjust and to release and lock the Same. 1

i 3. VIn a cultivator, the combinationof a supported arch axle, a tongue connected to said arch axle, a yokeV member fastened to Said tongue, a beam pivotally connected to said yoke-member, a crank arm rigid with said beam, an upwardly projecting bar connecting the yoke and arch axle and having a iinger member at its upper end, and a spring betweensaid crank arm and finger and a lever tensioning and locking member in series between saidspring and finger.

4. In a cultivator, the combination of a supported arch axle, a tongue connected to saidl arch axle, a yoke membery fastened to said tongue, a beam pivotally connected to said yoke member, a crank arm rigid with said beam, a bar connecting the yoke and archY axle and having a finger memberat its upper end, a spring between said crank arm series between said spring and nger.

5. In a cultivator, the combination of a supported arch axle, a tongue connected to said arch axle, a yoke member fastened to said tongue, a beam pivotally connected to said yoke member, a crank arm rigid with said beam, a spring between said 'crank arm and arch axle, and releasable means in series Fwith said spring to vary the tension thereof. Y

6. In a cultivator, the combination of an arch axle, a support connected at one end to said arch axle, a cultivator beam pivoted to the opposite end of said support, a counterbalancing spring operatively connected to said beam, and a lever operated tightening and releasing means in series with said spring, said spring and tightening means being arranged parallel to and beneath said support. Y f

In testimony whereof I afxmy signature.

' ARTHUR I-IOLSEY.

Copies ot this patent may be obtained-for ve cents each, Vby addressing the Goxnrnissioner of yatentg Washington, D. L 

